WO2008022225A3 - Method and apparatus for analyte measurements in the presence of interferents - Google Patents

Method and apparatus for analyte measurements in the presence of interferents Download PDF

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Publication number
WO2008022225A3
WO2008022225A3 PCT/US2007/076046 US2007076046W WO2008022225A3 WO 2008022225 A3 WO2008022225 A3 WO 2008022225A3 US 2007076046 W US2007076046 W US 2007076046W WO 2008022225 A3 WO2008022225 A3 WO 2008022225A3
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
interferents
analyte concentration
calibration coefficient
analyte
Prior art date
Application number
PCT/US2007/076046
Other languages
French (fr)
Other versions
WO2008022225A2 (en
Inventor
Dale W Hall
Original Assignee
Optiscan Biomedical Corp
Dale W Hall
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optiscan Biomedical Corp, Dale W Hall filed Critical Optiscan Biomedical Corp
Publication of WO2008022225A2 publication Critical patent/WO2008022225A2/en
Publication of WO2008022225A3 publication Critical patent/WO2008022225A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1495—Calibrating or testing of in-vivo probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement

Abstract

Method and apparatus are described that permit an analyte concentration to be estimated from a measurement in the presence of compounds that interfere with the measurement The method reduces the error in the analyte concentration in the presence of interferents The method includes the use of a set of measurements obtained for a large population having a range of known analyte and interfering compound concentrations From a sample measurement, which may or may not be one of the population, interferents likely to be present are identified, and a calibration coefficient is calculated The calibration coefficient may be applied to the measurement to estimate the analyte concentration In some implementations, the calibration coefficient may be determined as a weighted average of single interferent calibration coefficients In some embodiments, the sample measurement includes a spectroscopic measurement.
PCT/US2007/076046 2006-08-15 2007-08-15 Method and apparatus for analyte measurements in the presence of interferents WO2008022225A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US83774606P 2006-08-15 2006-08-15
US60/837,746 2006-08-15
US95009307P 2007-07-16 2007-07-16
US60/950,093 2007-07-16

Publications (2)

Publication Number Publication Date
WO2008022225A2 WO2008022225A2 (en) 2008-02-21
WO2008022225A3 true WO2008022225A3 (en) 2008-05-08

Family

ID=38983469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/076046 WO2008022225A2 (en) 2006-08-15 2007-08-15 Method and apparatus for analyte measurements in the presence of interferents

Country Status (2)

Country Link
US (1) US20080112853A1 (en)
WO (1) WO2008022225A2 (en)

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CN105848693A (en) * 2013-10-22 2016-08-10 美敦力迷你迈德公司 Methods and systems for inhibiting foreign-body responses in diabetic patients

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US8256286B2 (en) * 2009-04-24 2012-09-04 Sober Steering Sensors, Llc System and method for detecting and measuring ethyl alcohol in the blood of a motorized vehicle driver transdermally and non-invasively in the presence of interferents
US9131885B2 (en) 2009-07-02 2015-09-15 Dexcom, Inc. Analyte sensors and methods of manufacturing same
CN101626275B (en) * 2009-08-04 2013-03-27 华为技术有限公司 Method and device for detecting system fault
CN104040309B (en) * 2011-11-03 2019-06-07 威利食品有限公司 Inexpensive spectrometric system for end user's food analysis
GB2529070B (en) 2013-08-02 2017-07-12 Verifood Ltd Spectrometer comprising a plurality of isolated optical paths
WO2015101992A2 (en) 2014-01-03 2015-07-09 Verifood, Ltd. Spectrometry systems, methods, and applications
US10379036B2 (en) * 2014-02-19 2019-08-13 Halliburton Energy Services, Inc. Integrated computational element designed for multi-characteristic detection
US10101269B2 (en) 2014-07-30 2018-10-16 Smiths Detection Inc. Estimation of water interference for spectral correction
US9562862B2 (en) * 2014-09-09 2017-02-07 H2Optx Inc. Optical and chemical analytical systems and methods
WO2016063284A2 (en) 2014-10-23 2016-04-28 Verifood, Ltd. Accessories for handheld spectrometer
WO2016125165A2 (en) 2015-02-05 2016-08-11 Verifood, Ltd. Spectrometry system with visible aiming beam
WO2016125164A2 (en) 2015-02-05 2016-08-11 Verifood, Ltd. Spectrometry system applications
WO2016177777A1 (en) * 2015-05-05 2016-11-10 Sime Diagnostics System and method for measuring the concentration of an analyte in a blood sample
US10066990B2 (en) 2015-07-09 2018-09-04 Verifood, Ltd. Spatially variable filter systems and methods
US10203246B2 (en) 2015-11-20 2019-02-12 Verifood, Ltd. Systems and methods for calibration of a handheld spectrometer
EP3488204A4 (en) 2016-07-20 2020-07-22 Verifood Ltd. Accessories for handheld spectrometer
US10791933B2 (en) 2016-07-27 2020-10-06 Verifood, Ltd. Spectrometry systems, methods, and applications
CN108226078A (en) * 2018-02-11 2018-06-29 中国环境科学研究院 The adjustable ultraviolet-visible spectrum in-situ monitoring device of light path and multi-parameter water-quality measuring method
US11455298B2 (en) 2019-02-06 2022-09-27 Parsons Corporation Goal-directed semantic search
WO2020198688A1 (en) * 2019-03-28 2020-10-01 The Regents Of The University Of California Concurrent analysis of multiple analytes
US20220211941A1 (en) * 2019-07-19 2022-07-07 Medtrum Technologies Inc. Integrated drug infusion device
CA3181510A1 (en) * 2020-06-11 2021-12-16 Siemens Healthcare Diagnostics Inc. Method and analyzer to correct for unknown interferences in a patient blood sample
CN113848186A (en) * 2021-10-15 2021-12-28 广东粤港供水有限公司 Concentration detection method and related equipment

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CN105848693A (en) * 2013-10-22 2016-08-10 美敦力迷你迈德公司 Methods and systems for inhibiting foreign-body responses in diabetic patients

Also Published As

Publication number Publication date
WO2008022225A2 (en) 2008-02-21
US20080112853A1 (en) 2008-05-15

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